Compress PDF
Make a PDF small enough to email or upload without turning its text into mush. You pick how hard to compress, and both sizes are shown before you download anything. It is free, needs no account, and adds no watermark to your result.
Compress PDF
Add your files. Recommended settings are ready, so you can process in one click.
PDF, Word, images, audio, video, archives and more
Up to 100 files · 250 MB · No account- 1Add files
- 2Choose an action
- 3Download or keep going
What people use it for.
What happens to your file.
Almost all of the weight in a typical PDF is its images, so that is what the compression targets. Each embedded image is re-encoded at a resolution and quality matched to the level you choose, while the text layer, the fonts and any vector drawings are left exactly as they were: those cost very little space and are precisely the parts that look wrong when they are degraded. That is why text stays sharp and selectable at every level, and why a PDF that is pure text will barely shrink at all.
Where it stops: A text-only PDF has almost nothing to compress, because the images were the weight. High compression will visibly soften photographs and fine detail in a scan, and it cannot be reversed from the output, so keep your original. A file that was already optimised when it was created may only lose a few percent.
Everything you need, without a paywall.
Common questions.
How do I compress a PDF for free?
Drop the file in, choose a compression level, and download the result. No account, no watermark, no page limit.
Will compressing blur my text?
No. Only the images are re-encoded. Text and vector drawings are copied across untouched, so they stay sharp and selectable at every level.
Why did my PDF barely get smaller?
Because it was mostly text. Compression works on images, so a document with few or no photographs has very little to give up.
Which level should I choose?
Medium for almost everything. Use high only when you have a hard size limit to meet and the document is a scan you do not need to study closely.
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